| SDU | standard deviation unit; step-down unit |
|---|---|
| PET | peak ejection time; polyethylene terphthalate; poor exercise tolerance; positron emission tomography... |
| CAT | California Achievement Test; capillary agglutination test; catalase; cataract; catecholamine; Childr... |
| TAT | tetanus antitoxin; thematic apperception test; thematic aptitude test; thrombin-antithrombin complex... |
| SAE | serious adverse event; short above-elbow [cast]; specific action exercise; subcortical arteriosclero... |